Best year time to visit Castaic Junction

General weather information about Castaic Junction

Average annual temperature is 17.9 °C

Absolute maximum temperature: 39.0 °C

Absolute minimum temperature: 1.6 °C

Number of sunny days: 274 days

Number of rainy days: 91 days

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* Weather data for Castaic Junction United States is based on climate observations for 2026 year

Castaic Junction air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.223.721.832.333.534.538.539.036.237.631.926.4
Average daytime temperature (°C)15.817.316.523.623.625.835.333.229.329.723.620.4
Average temperature (°C)10.810.611.316.317.619.528.125.922.521.816.313.9
Average night temperature (°C)7.36.07.510.713.315.321.820.017.815.510.89.1
Absolute minimum temperature (°C)2.53.11.64.69.012.916.715.512.89.75.54.8

Castaic Junction monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.110.912.013.114.014.414.213.412.411.310.49.9
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.48.48.011.210.910.713.111.510.110.29.07.3
Precipitation (mm)2721142261114806817135122
Sunny days181511252224312826272324
Rainy days131320596034477
Snow days000000000000

Castaic Junction - weather forecast by months

Castaic Junction weather in januaryCastaic Junction weather in februaryCastaic Junction weather in marchCastaic Junction weather in aprilCastaic Junction weather in mayCastaic Junction weather in juneCastaic Junction weather in julyCastaic Junction weather in augustCastaic Junction weather in septemberCastaic Junction weather in octoberCastaic Junction weather in novemberCastaic Junction weather in december

Best time to visit Castaic Junction:

The best time to visit Castaic Junction during the most sunny months:

  • July — 13.1(h)

The largest precipitation sum in Castaic Junction is at

  • January — 272(mm)
  • February — 114(mm)
  • March — 226(mm)
  • December — 122(mm)

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    Frequently asked questions

    When is the best time to visit Castaic Junction?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Castaic Junction.
    What is the weather like in Castaic Junction?
    See average temperature, rainfall and daylight hours for Castaic Junction by month in the table above.
    How many sunny days does Castaic Junction have?
    The monthly weather statistics above show sunshine and rainfall patterns for Castaic Junction throughout the year.